Počet záznamů: 1
Numerical analysis of pump propagation and absorption in specially tailored double-clad rare-earth doped fiber
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SYSNO ASEP 0449022 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Numerical analysis of pump propagation and absorption in specially tailored double-clad rare-earth doped fiber Tvůrce(i) Koška, Pavel (URE-Y)
Peterka, Pavel (URE-Y) RIDCelkový počet autorů 2 Zdroj.dok. Optical and Quantum Electronics. - : Springer - ISSN 0306-8919
Roč. 47, č. 9 (2015), s. 3181-3191Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Finite element method ; Fiber lasers ; Double clad fibers Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika CEP GA14-35256S GA ČR - Grantová agentura ČR Institucionální podpora URE-Y - RVO:67985882 UT WOS 000361444100006 EID SCOPUS 84941873858 DOI 10.1007/s11082-015-0194-2 Anotace We present a numerical analysis of multi-mode pump absorption in recently proposed double-clad fiber with stadium-like cross section of the inner cladding and asymmetrically placed rare-earth doped core. Such a cross section allows easy splicing of the multi-mode pump fiber and single-mode signal fiber to the double-clad fiber. The full-vector finite element beam propagation method was used as a numerical tool. In order to allow excitation of the structure by arbitrary field profile, definite set of functionals satisfying unisolvence condition together with hybrid edge-nodal finite element basis was derived. The flat-top field profile and more realistic speckle pattern were considered in the analysis. The effect of coiling and simultaneous twisting of the fiber was taken into account. It was found that the twisting of the DC fiber significantly improves the pump absorption Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2016
Počet záznamů: 1